diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
index 20f4dabdf..f37c291bf 100644
--- a/zephyr/CMakeLists.txt
+++ b/zephyr/CMakeLists.txt
@@ -7,83 +7,83 @@ if(CONFIG_BOOTLOADER_MCUBOOT)
 
   if (${require_build})
     add_subdirectory(${MCUBOOT_BASE}/boot/zephyr ${CMAKE_BINARY_DIR}/mcuboot)
+  endif() # ${require_build}
 
-    set(to_sign_hex ${KERNEL_HEX_NAME})
+  set(to_sign_hex ${KERNEL_HEX_NAME})
 
-    # TODO: Assert that the bootloader and image use the same key.
+  # TODO: Assert that the bootloader and image use the same key.
 
-    set(signed_image_hex ${PROJECT_BINARY_DIR}/signed.hex)
-    set(signed_image_bin ${PROJECT_BINARY_DIR}/signed.bin)
-    set(to_sign_bin ${PROJECT_BINARY_DIR}/to_sign.bin)
-    set(update_hex ${PROJECT_BINARY_DIR}/update.hex)
-    set(update_bin ${PROJECT_BINARY_DIR}/update.bin)
+  set(signed_image_hex ${PROJECT_BINARY_DIR}/signed.hex)
+  set(signed_image_bin ${PROJECT_BINARY_DIR}/signed.bin)
+  set(to_sign_bin ${PROJECT_BINARY_DIR}/to_sign.bin)
+  set(update_hex ${PROJECT_BINARY_DIR}/update.hex)
+  set(update_bin ${PROJECT_BINARY_DIR}/update.bin)
 
-    get_property(app_binary_dir GLOBAL PROPERTY PROJECT_BINARY_DIR)
-    set(merged_hex_file
-      ${app_binary_dir}/mcuboot_primary_app.hex)
-    set(merged_hex_file_depends
-      mcuboot_primary_app_hex)
-    set(sign_merged
-      $<TARGET_EXISTS:partition_manager>)
-    set(to_sign_hex
-      $<IF:${sign_merged},${merged_hex_file},${PROJECT_BINARY_DIR}/${KERNEL_HEX_NAME}>)
-    set(sign_depends
-      $<IF:${sign_merged},${merged_hex_file_depends},zephyr_final>)
-    set(sign_cmd
-      ${PYTHON_EXECUTABLE}
-      ${MCUBOOT_BASE}/scripts/imgtool.py
-      sign
-      --key ${MCUBOOT_BASE}/${CONFIG_BOOT_SIGNATURE_KEY_FILE}
-      --header-size $<TARGET_PROPERTY:partition_manager,MCUBOOT_HEADER_SIZE>
-      --align       ${DT_FLASH_WRITE_BLOCK_SIZE}
-      --version 0.1 # TODO configurable?
-      --slot-size $<TARGET_PROPERTY:partition_manager,MCUBOOT_SLOT_SIZE>
-      --pad-header
-      )
+  get_property(app_binary_dir GLOBAL PROPERTY PROJECT_BINARY_DIR)
+  set(merged_hex_file
+    ${app_binary_dir}/mcuboot_primary_app.hex)
+  set(merged_hex_file_depends
+    mcuboot_primary_app_hex)
+  set(sign_merged
+    $<TARGET_EXISTS:partition_manager>)
+  set(to_sign_hex
+    $<IF:${sign_merged},${merged_hex_file},${PROJECT_BINARY_DIR}/${KERNEL_HEX_NAME}>)
+  set(sign_depends
+    $<IF:${sign_merged},${merged_hex_file_depends},zephyr_final>)
+  set(sign_cmd
+    ${PYTHON_EXECUTABLE}
+    ${MCUBOOT_BASE}/scripts/imgtool.py
+    sign
+    --key ${MCUBOOT_BASE}/${CONFIG_BOOT_SIGNATURE_KEY_FILE}
+    --header-size $<TARGET_PROPERTY:partition_manager,MCUBOOT_HEADER_SIZE>
+    --align       ${DT_FLASH_WRITE_BLOCK_SIZE}
+    --version 0.1 # TODO configurable?
+    --slot-size $<TARGET_PROPERTY:partition_manager,MCUBOOT_SLOT_SIZE>
+    --pad-header
+    )
 
-    add_custom_command(
-      OUTPUT
-      ${signed_image_hex}
-      ${update_hex}
-      ${update_bin}
-      COMMAND
-      ${sign_cmd}
-      ${to_sign_hex}
-      ${signed_image_hex}
-      COMMAND
-      ${CMAKE_OBJCOPY}
-      --input-target=ihex
-      --output-target=binary
-      ${to_sign_hex}
-      ${to_sign_bin}
-      COMMAND
-      ${sign_cmd}
-      ${to_sign_bin}
-      ${update_bin}
-      COMMAND
-      ${sign_cmd}
-      --pad # This argument is needed for MCUboot to apply the test swap.
-      ${to_sign_hex}
-      ${update_hex}
-      COMMAND
-      ${CMAKE_OBJCOPY}
-      --input-target=ihex
-      --output-target=ihex
-      --change-address $<TARGET_PROPERTY:partition_manager,MCUBOOT_SLOT_SIZE>
-      ${update_hex}
-      ${PROJECT_BINARY_DIR}/moved_update.hex
-      DEPENDS
-      ${sign_depends}
-      )
-    add_custom_target(mcuboot_sign_target DEPENDS ${signed_image_hex})
+  add_custom_command(
+    OUTPUT
+    ${signed_image_hex}
+    ${update_hex}
+    ${update_bin}
+    COMMAND
+    ${sign_cmd}
+    ${to_sign_hex}
+    ${signed_image_hex}
+    COMMAND
+    ${CMAKE_OBJCOPY}
+    --input-target=ihex
+    --output-target=binary
+    ${to_sign_hex}
+    ${to_sign_bin}
+    COMMAND
+    ${sign_cmd}
+    ${to_sign_bin}
+    ${update_bin}
+    COMMAND
+    ${sign_cmd}
+    --pad # This argument is needed for MCUboot to apply the test swap.
+    ${to_sign_hex}
+    ${update_hex}
+    COMMAND
+    ${CMAKE_OBJCOPY}
+    --input-target=ihex
+    --output-target=ihex
+    --change-address $<TARGET_PROPERTY:partition_manager,MCUBOOT_SLOT_SIZE>
+    ${update_hex}
+    ${PROJECT_BINARY_DIR}/moved_update.hex
+    DEPENDS
+    ${sign_depends}
+    )
+  add_custom_target(mcuboot_sign_target DEPENDS ${signed_image_hex})
 
-    set_property(GLOBAL PROPERTY
-      mcuboot_primary_app_PM_HEX_FILE
-      ${signed_image_hex}
-      )
-    set_property(GLOBAL PROPERTY
-      mcuboot_primary_app_PM_TARGET
-      mcuboot_sign_target
-      )
-  endif() # ${require_build}
+  set_property(GLOBAL PROPERTY
+    mcuboot_primary_app_PM_HEX_FILE
+    ${signed_image_hex}
+    )
+  set_property(GLOBAL PROPERTY
+    mcuboot_primary_app_PM_TARGET
+    mcuboot_sign_target
+    )
 endif()